<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org" xmlns:http="http://www.w3.org/1999/xhtml"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4">
<!--所有页面共有头部-->
<div th:fragment="header">
    <div class="header">
        <div style="text-align: center " class="top"> <h1>网址管理网站</h1></div>
        <form th:action="@{/logout}" method="post">
            <p><input type="submit" value="注销"/></p>
        </form>
    </div>
</div>
</html>